Combine all ingredients in an oversized coffee mug.
Whisk well with a small whisk until smooth. If there are flour chunks, use fork to break up chunks. Microwave on high for 1 1/2 minutes and then take it out to check to see if it is done. If not, continue to microwave in thirty second intervals. Mine was done at 2 minutes. You don’t want to overcook it or it will become rubbery. You can also make this into two regular sized mugs. You can mix the batter all in one mug and then pour half into another mug. Make sure you cook each one individually. They will likely be done faster (around 1 1/2 minutes).